GLM-5.1: Towards Long-Horizon Tasks

by zixuanlimit on 4/7/2026, 4:32:15 PM

Comments

by: RickHull

I am on their "Coding Lite" plan, which I got a lot of use out of for a few months, but it has been seriously gimped now. Obvious quantization issues, going in circles, flipping from X to !X, injecting chinese characters. It is useless now for any serious coding work.

4/7/2026, 5:17:27 PM

by: Yukonv

Unsloth quantizations are available on release as well. [0] The IQ4_XS is a massive 361 GB with the 754B parameters. This is definitely a model your average local LLM enthusiast is not going to be able to run even with high end hardware.[0] <a href="https://huggingface.co/unsloth/GLM-5.1-GGUF" rel="nofollow">https://huggingface.co/unsloth/GLM-5.1-GGUF</a>

4/7/2026, 5:06:49 PM

by: johnfn

GLM-5.0 is the real deal as far as open source models go. In our internal benchmarks it consistently outperforms other open source models, and was on par with things like GPT-5.2. Note that we don't use it for coding - we use it for more fuzzy tasks.

4/7/2026, 6:16:26 PM

by: alex7o

To be honest I am a bit sad as, glm5.1 is producing mich better typescript than opus or codex imo, but no matter what it does sometimes go into shizo mode at some point over longer contexts. Not always tho I have had multiple session go over 200k and be fine.

4/7/2026, 5:25:56 PM

by: winterqt

Comments here seem to be talking like they've used this model for longer than a few hours -- is this true, or are y'all just sharing your initial thoughts?

4/7/2026, 6:13:34 PM

by: kirby88

I wonder how that compare to harness methods like MAKER <a href="https://www.cognizant.com/us/en/ai-lab/blog/maker" rel="nofollow">https://www.cognizant.com/us/en/ai-lab/blog/maker</a>

4/7/2026, 5:58:48 PM

by: gavinray

I find the "8 hour Linux Desktop" bit disingenuous, in the fine print it's a browser page:<pre><code> > "build a Linux-style desktop environment as a web application" </code></pre> They claim "50 applications from scratch", but "Browser" and a bunch of the other apps are likely all <iframe> elements.We all know that building a spec-compliant browser alone is a herculean task.

4/7/2026, 6:14:01 PM

by: DeathArrow

I am already subscribed to their GLM Coding Pro monthly plan and working with GLM 5.1 coupled with Open Code is such a pleasure! I will cancel my Cursor subscription.

4/7/2026, 6:08:34 PM

by: jaggs

How does it compare to Kimi 2.5 or Qwen 3.6 Plus?

4/7/2026, 6:11:22 PM

by: bigyabai

It's an okay model. My biggest issue using GLM 5.1 in OpenCode is that it loses coherency over longer contexts. When you crest 128k tokens, there's a high chance that the model will start spouting gibberish until you compact the history.For short-term bugfixing and tweaks though, it does about what I'd expect from Sonnet for a pretty low price.

4/7/2026, 5:02:09 PM

by: dang

[stub for offtopicness][[you guys, please don't post like this to HN - it will just irritate the community and get you flamed]]

4/7/2026, 4:55:11 PM

by: aplomb1026

[dead]

4/7/2026, 5:32:07 PM

by: andrewmcwatters